Timing Belt: Service and Repair
TIMING BELT REMOVAL/INSTALLATION1. Disconnect the negative battery cable.
2. Remove the exhaust side spark plugs.
3. Remove the crankshaft pulley.
4. Remove the timing belt outer cover.
5. Rotate the crankshaft until the number 1 piston is at Top Dead Center (TDC).
Caution: If you attempt to remove the belt without loosening both timing belt tensioner adjusting bolt and spring pivot bolt, damage to Camshaft Belt Tension Tool SST 49 UN01 067 could occur when attempting to relieve belt tension.
6. Loosen the timing belt spring pivot bolt. Do not remove.
7. Loosen the adjusting bolt slowly and release spring tension.
8. Rotate tensioner with Camshaft Belt Tension Tool SST 49 UN01 067, against spring pressure, clockwise to the farthest position.
9. Hold in this position and tighten adjusting bolt to hold tensioner away from the belt.
10. Remove the timing belt.
11. Make sure the crankshaft is at TDC on piston No. 1 with the crankshaft keyway pointing straight up and the circle on crankshaft sprocket aligned with notch in engine front cover.
12. Align the timing marks.
1. Align the crankshaft sprocket mark to the front cover notch.
2. Align the oil pump sprocket diamond to the engine front cover diamond.
3. Align the camshaft sprocket triangle to the engine front cover triangle.
13. Install the timing belt over the crankshaft sprocket, proceeding counterclockwise over the oil pump sprocket and over the camshaft sprocket.
14. Loosen the bolt allowing the tensioner pulley to press against the timing belt.
Note: The timing belt tensioner must not be tightened or belt tension will not be distributed over the entire belt.
15. Rotate the crankshaft two revolutions clockwise. Bring crank slowly to number one position firing position (keyway on crank facing up). The dot on the crankshaft gear is aligned with the notch on the front cover.
16. Recheck timing mark alignment. Repeat if required.
17. Install in reverse order of removal.